Reaching the peak of resolution: 61.0 MP2 full-frame CMOS sensor

Sony's newly developed 35 mm full-frame back-illuminated CMOS sensor with 61.0 megapixels2 enables the full-frame mirrorless α7R IV to attain expressive prowess once expected only in conventional medium-format cameras. Thanks to this mirrorless design, absence of mechanical mirror shock can maximize resolution without negative effect on image quality. The α7R IV realizes the level of image quality that surpasses the expectation for conventional full-frame cameras especially in the low- to mid-sensitivity range. Sony's proprietary technology achieves superb high resolution while assuring low noise and high sensitivity.

The enhanced image processing engine makes the most of the CMOS sensor

To match the excellence of the new image sensor, the high-speed BIONZ X image processing engine is also further enhanced to faithfully reproduce details and reduce noise significantly. Noise that tends to occur due to heightened pixel count is minimized for high image quality, especially in the standard ISO sensitivity range up to ISO 32000.3 Wide 15-stop dynamic range4 at low ISO sensitivity (for stills) delivers smoother reproduction of gradations from shadow to highlight. Moreover, the α7R IV's inherited color reproduction in still pictures - acclaimed in the latest α series - captures skin color in portraits and vivid color of flowers for natural α7R IV depiction.

Features maximizing superb 61.0 MP2 resolution

The α7R IV's extremely high image 61.0-megapixel resolution performance is maximized by other α7R IV advantages, one of which is 5-axis optical in-body image stabilization with optimized algorithms to achieve up to a 5.5-stop5 shutter speed advantage. Another outstanding feature is the electronic shutter allowing silent, vibration-free shooting. Additionally, the α7R IV incorporates an internal damper structure to absorb the impact of shutter motion for minimum shutter vibration. Many features in the α7R IV serve for realizing sharply resolved imaging.

Exceptional high-speed 10fps burst shooting with AF/AE tracking

Despite a high resolution of 61.0 MP2, an ingenious algorithm enables efficient processing for high-speed continuous shooting of up to 10fps11 with AF/AE tracking through a mechanical shutter. It is also possible to shoot continuously at up to 8fps in live-view mode, with minimal display time lag for capturing fast-moving subjects. After a full-frame image is cropped down to APS-C size or if APS-C shooting mode is chosen, you can still get 26.2 MP high-resolution images. This is a great advantage for wild animal photographers who rely on cropping after capturing images of quickly moving animals/birds from afar.

Up to 68 images in continuous shooting

Professional photographers need to achieve consistent shooting without interruption. With 1.5x greater buffer memory, system speed, and UHS-II support, the α7R IV can capture up to approx. 68 images12 in a continuous burst at 10fps1. With APS-C shooting mode, approximately three times more photos can be shot than with full-frame shooting mode. Fn menu/menu display access, setting changes, and review playback can occur during data writing. A countdown of the number of still images remaining to be written to memory is on display during playback.

Anti-flicker shooting13

Flicker from fluorescent and other artificial lighting is automatically detected and shutter action is timed to minimize the effect of flicker on still images. This suppresses exposure and color anomalies at the top and bottom of images shot at high shutter speeds, as well as exposure and color inconsistency between continuous shots, so you can take images indoors with more confidence.

Dual media slots, both supporting UHS-II

The α7R IV provides two media slots for SD cards, both SLOT 1 and SLOT 2 are now compatible with UHS-I and UHS-II for fast mass-volume data writing. Two cards in the slots can be used to simultaneously record or relay record data, separate RAW data from JPEG data, or stills from movies, and copy data from one card to the other. A slide lock structure prevents the memory card cover from being opened unintentionally.

Shooting for more professional lengths

The α7R IV employs the large-capacity NP-FZ100 battery just like α7R III. Due to a more energy-efficient circuit design, the α7R IV matches α7R III usage level longevity, despite the higher resolution of the α7R IV image sensor and EVF. An optional Vertical Grip (VG-C4EM) can hold two batteries and an optional Multi Battery Adaptor Kit (NPA-MQZ1K) can hold up to four batteries for even longer hours of shooting. In addition to using such optional accessories, USB Type-C™ and Multi/Micro USB ports allow external mobile batteries to power the camera for further extended recording.

Real-time Eye AF works in tandem with Real-time Tracking technology, based on the latest evolutionary advances in artificial intelligence, for highly efficient portrait shooting. This progressive system detects and processes face and eye data in real time, and stays locked onto the eye of the subject with unprecedented precision. When "Face/Eye Priority in AF" is ON, Eye AF (AF-C/AF-S/AF-A mode) can be activated not only through a custom key assignment, but also by half-pressing the shutter button or pressing the AF-ON button. This function now allows you to choose a particular eye - left or right, in advance or during shooting. Real-time Eye AF supports movie shooting in addition to stills.

Real-time Eye AF for Animals reliably tracks wild animals and pets14

Advanced AI-based subject recognition in Sony's Real-time Eye AF includes a new algorithm supporting animal tracking for fast, precise, automatic detection and tracking of an animal's eye. This new capability will greatly increase your success rate when shooting pictures of animals in the wild or beloved pets at home, situations where accurate focus has been a challenge.15 All AF-C, AF-S, and AF-A focus modes are supported.

Real-time Tracking holds the focus on tracked subjects

With this technology, accurate focus is maintained automatically while the shutter button is half-pressed. You can select a subject as you intend, rely on the α7R IV, and concentrate on your composition since the camera takes care of subject tracking. A newly adopted Real-time Tracking algorithm uses color, pattern (brightness), and subject distance (depth) data to process spatial information while AI technology detects a subject's face and eye in real time. Available for both stills and movies.

Focal-plane phase-detection AF supports A-mount lenses16

Phase-detection AF can operate even when an A-mount lens is attached to the α7R IV via an LA-EA3 Mount Adaptor. The 567-point focal-plane phase-detection AF system provides wide-area coverage, fast response, and high-performance tracking even if an A-mount lens is attached.

Versatile flash compatibility

The α7R IV has a sync terminal, so non-dedicated flash units and cables with standard sync terminals can be connected for convenient synchronization with studio flash units, etc. Release time lag when shooting with flash is minimized for smooth, responsive flash photography. Continuous flash shooting at up to 10fps offers advanced capture capability.18 To enhance versatility further, slow sync and rear curtain sync can be selected when shooting with wireless off-camera flash.19.

A different dimension of resolution opens with Pixel Shift Multi Shooting. The α7R IV now supports image compositing from 16 pixel-shifted images in addition to previously available compositing from four images. Applying advanced image stabilization control, this renewed feature precisely shifts the sensor in half-pixel increments four times and in one-pixel increments four times alternately, to capture a total of 16 pixel-shifted images. These are composited by PC20 into one high-precision image of approx. 240.8 million pixels (19,008 x 12,672) from original data that holds the equivalent of approx. 963.2 million pixels to achieve overwhelming resolution in a single picture.21 Still images of architecture and art are captured in true-to-life detail, texture, color, mood, setting, and 3D-like realism, recreating hues with minimal moiré or color artifacts, and even reproducing atmosphere and surroundings with breathtaking fidelity for unprecedented accuracy in real-life imagination.

Reliable durability and weather resistance22 in tough situations

The α7R IV brings you further enhanced body durability, with full use of lightweight, high-rigidity magnesium alloy for covers and internal frame, keeping the camera highly rigid and light. In response to pro opinions, enhanced sealing is applied to the battery cover, terminal cover and all joints in the chassis. A double-sealed sliding mechanism replaces the hinge to the media compartment lid for better moisture resistance.22 Routes to dust and moisture entry have been re-examined, and a cushion around the lens mount has been added to ensure reliable operation in challenging environments.

Redesigned controls for confident and comfortable operation

A new multi-selector lets you shift point of focus quickly and intuitively to avoid missing moving subjects. The surface texture is changed to enhance button response for easier and more confident operation, in reply to pro users' requests. In addition, the AF-ON button is enlarged and optimized for easier access, with an adjusted click feeling and location. Furthermore, the new Exposure Compensation Dial Lock Button locks or unlocks alternately at each press and prevents accidental turning when set to lock position. These improvements enhance your concentration on shutter release to "capture the moment" instantly.

footnote13Flicker at a frequency other than 100Hz or 120Hz cannot be detected. In continuous shooting mode, the shooting speed may decrease or the duration of each shot may become inconsistent, and area covered by phase-detection AF becomes narrowed. This function does not work when using bulb shooting and movie shooting modes.

footnote14Supports only stills.

footnote15Depending on conditions of the shooting scene and subject, autofocus may fail in some cases. When Real-time Tracking is activated, "Animal" cannot be selected as a detectable subject.

footnote16With SSM or SAM lenses only. With the LA-EA3 Mount Adapter. Focal-plane phase-detection AF not supported for movie recording. AF-C can only be used when the "Phase detection" AF system is selected, but focus is fixed at the first frame during continuous shooting in any mode other than "Continuous: Lo" (Hi+, Hi, Mid).

footnote17Models sold in some countries/regions support IEEE 802.11b/g/n (2.4 GHz) wireless LAN only. 5 GHz communication may be restricted in some countries and regions.

footnote18Maximum continuous shooting speed will depend on the flash and shooting settings used.

footnote19Rear curtain sync is not available when using optical wireless flash units.

footnote20Imaging Edge Desktop application Ver 2.0 or later is required. Image compositing may not be successful if camera or subject movement causes blur. The use of a tripod is recommended, as is the use of PC tethered control or a remote commander (when PC tethered control is not being used) where possible. Uncompressed RAW and silent mode are automatically selected for Pixel Shift Multi Shooting. Some restrictions apply to flash and other devices. Refer to the Sony support site for details. http://www.sony.net/psms/

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